Is this implantation bleeding?

I don’t know if this is implantation bleeding or not I started bleeding yesterday a more rusty brown color similar to the brown shown. Then today again barely bleeding but this time it’s both brown and pinkish with the middle being like discharge and thicker in texture. I am having pain as well which I typically don’t have pain on my period. and the day before any of this started I had pain too not extreme but enough to be like okay this is new (for me). I’m able to still do most things like normal. Any ideas as to if this is or isn’t the start?